Fire-extinguisher.



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(Application tiled Apr. 24, 1899.)

(No Model.)

W T. N E V N .b. LL S S E N W W ATTORNEY YH: rignms Pnzns co.muro-urna.. wAsnw Grou, u4 c.

UNTTEE STATES PATENT OFFICE,

GEORGE HENRY DOWNING, OF NEV YORK, N. Y.

FIRE-EXTINGUISHER.

SPECIFICATION forming part of Letters Patent No. 649,281, dated May 8,19O.

Application filed April 24,1899. Serial No. 714,171. (No model.)

T0 (v7/Z 'whom 'it 11mg/ con/cern:

Beit known that I, GEORGE HENRY DOWN- ING, a citizen of the UnitedStates of America, and a resident of New York city, county and State ofNew York, have invented and made certain Improvements inFire-Extinguishers; and I do hereby declare that the following is afull, clear, and exact description and speciiication of the invention,reference being had to the accompanying drawings, forminga part of thesame.

My invention relates to that class of fireextinguishers calledhandemachines and which are charged with an alkaline-carbonate fluid andan acid, the acid being contained in a closed receptacle, usually madeof glass, while the alkaline carbonate is contained within the barrel ofthe apparatus, so that when in use for extinguishing a iire the acid andalkaline-carbonate iiuid are mixed to discharge carbonated water bybreaking the vessel containing the acid and allowing it to act upon thealkaline carbonate. Many devices have been made and used to facilitatethe above operation; but in nearly all apparatus heretofore devisedpractical difficulties have rendered the apparatus inefficient and soondestroyed or rendered useless. My invention is designed to remedy suchdefects and to provide an apparatus at once eiiicient and not liable toderan gement and to this end my invention consists in certain elementsand combinations of parts fully set forth in this specication andclaimed at the end thereof.

In order that persons skilled in the art to which my inventionappertains may understand, construct, and use my invention, I willproceed to describe it, referring to the drawings herewith, in which-Figure l is a vertical central section of my apparatus. Fig. 2 is thesame of the lower part of my apparatus, showing a modification of and analternate method of construction.

A is the barrel of the apparatus.

B is the bottom head.

Gis the dome-shaped upper head, provided with the mouthpiece D, whichmouthpiece D at its upper part is threaded to receive and be closed by ascrew-cap E in a well-known manner.

F is a discharge-nozzle, open at all times, and to this 'nozzle F arubber pipo and tip may be secured to direct the fiuid, when be ingdischarged, upon the fire.

Within the barrel and centrally thereof is a socket or cup L, secured tothe bottom head B. Fig. 2 shows an alternate construction. In this cupor socket a pipe G rests to center it within the machine and to preventany side movement. Pipe G extends thence upward into the mouth or neck Da short distance, and upon the top of the pipe G rests an acidbottle I.This acid-bottle also extends downward within said pipe G, resting onthe top of the pipe by a flange or bead near the top of acid-bottle I.

J is a rubber stopper in the neck of acid-bot; tie I, and when all is inposition ready for operation the rubber stopper is held firmly in thebottle by the under side of cap E, which is screwed down firmly upon it.Y p

The extension of the pipe G into the neck of the apparatus D is for thepurpose of se= curing the pipe G and the bottle I from any movement inany direction. The neck D secures it from side movement, and thepressure of the cap E when screwed firmly upon its rubber stopper Jholds the whole internal structure from end movement. The weight IIrests in the bottom of pipe G- when the apparatus is in uprightposition, as shown in the drawings; but when the apparatus is to be usedfor extinguishing a fire, the carbonated water being in the barrel ofthe apparatus to about the height W, the machine is turned upside downand the weight II falls upon the glass acid-bottle I, containingsulfuric acid, and breaks the bottle, discharging its contents into thecarbonated water, and produces a heavy pressure of carbonio acid andwater, which is thrown upon the iire by the operator through nozzle F ina well-known manner.

The apparatus is recharged, of course, for another operation.

Having now fully described my invention and the manner in which I haveembodied it, what I claim as new and as myinvention, and desire tosecure by Letters Patent, is

In a hand lire-extinguisher; the combination consisting of the barrel Aconstructed substantially as specified with retaining projection withinthe barrel at its base B; neck D at its upper end closablo by screw-capE pipe ICO pipe G, from end movement; Weight H 10- 1o cated Within thepipe G, al1 constructed, arranged and combined to operate substantiallyas and for the purposes specified.

GEORGE HENRY DOVVNING.

Witnesses:

JAMES M. HICKS, CHARLES W. LOW.

